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SBB Human Blood Groups Updated / 159 Complete Questions And Answers Graded (A+)
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- SBB Human Blood Groups Updated 2023 -2024
SBB Human Blood Groups Updated / 159 Complete Questions And Answers Graded (A+)
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SBB Human Blood Groups Updated 2023 -2024 /159 Complete Questions And Answers Graded (A+)
Quiz :How would Ulex europaeus react with O, A, A2, B, A2B, A1B RBCs? -
Answer :O>A2>B>A2B>A1>A1B
Quiz :How could you distinguish serologically A1, A2 and A3 -
Answer :Dolichos biflorus can will react with A1 and not A2. A3 yields mixed
field reactions with anti-A and anti-A,B
Quiz :What is the correct order of type of RBCs to transfuse in an AB patient
when AB RBCs are not available? Why? - Answer :A, B, O; the residual anti-B in
A RBCs is less immunogenic than the residual anti-A in B RBCs
Quiz :What type of RBCs would you transfuse to a patient with anti-G -
Answer :RBCs transfused must lack the D and C antigens
Quiz :Can you detect a weak D using Gel Technology? - Answer :No, because
there is no washing phase
Quiz :Can an Rh positive father and Rh positive mother yield an Rh negative
child - Answer :Yes, if both parents are heterozygous for the D gene.
Inheritance is autosomal recessive
Quiz :What type of RBCs in regards to Rh phenotype would you transfuse in a
patient with anti-f - Answer :RBCs should be negative for the c and e antigens
Quiz :How could you solve an ABO discrepancy where Anti-M was causing
aberrant results in reverse grouping when the forward type is consistent with
A blood group and reverse as O? - Answer :Treat A1 cells with ficin to denature
the M antigen, repeat reverse grouping with ficin-treated A1 cells.
Quiz :Why do you see an anti-N like specificity in dialysis patients? -
Answer :Formaldehyde induced antibody to 'N' due to formaldehyde used in
dialysis procedures.
Quiz :A patient types as follows: anti-A=4+, Anti-B=1+, A1 Cells=2+, B cells=4+.
The ABO discrepancy led to suspicion of a possible cold autoantibody based on
patient histopry and diagnosis. RESt was used in an attept to adsorb the
autoantobidy. The type was repeated with adsorbed plasma Anit-A=4+, Anti-
, B=0, A1 cells=0, B cells=0. What could be the cause of this discrepancy? -
Answer :Anti-B was adsorbed out with RESt.
Quiz :What enzyme may be useful in distinguishing anti-Ge2? -
Answer :papain
Quiz :The beta 1-3 linkage between galactose and N-acetylglucosamine is
found in? - Answer :secretions
Quiz :Represents Type II chain - Answer :Beta 1-4 linkage between galactose
and N acetyl glucosamine
Quiz :Represents decreasing concentrations of H antigen on RBCs -
Answer :O>A2>B>A2B>A1>A1B
Quiz :The ABO genes are located on what chromosome -
Answer :Chromosome 9
Quiz :Which glycosyltransferase is needed before A and B antigens are
formed? - Answer :L-fucosyltransferase
Quiz :Which reflects the A3 subgroup - Answer :mixed field reactions with
Anti-A and Anti-A,B.
Quiz :Which fo the following reflects the A el subgroup? - Answer :Positive
reactions with Anti-H
Quiz :What clinical condition may yield positive reactions with Anti-A, negative
with Anti-B, negative with A1 and B cells. - Answer :hypogammaglobulinemia
Quiz :What differentiates a Bombay anti-H from an anti-H cold agglutinin? -
Answer :reactivity at body temperature.
Quiz :This antigen is associated with linear carbohydrate chains - Answer :i
antigen
Quiz :The following reactions are found on a 35-year old male. Anti-A=4+, Anti-
B=0, Anti-A,B=4+, A1 cells=3+, B cells=4+, O cells=3+. How could these results
be explained? - Answer :Anti-M in plasma
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